CN208267823U - A kind of twin-core float valve - Google Patents
A kind of twin-core float valve Download PDFInfo
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- CN208267823U CN208267823U CN201820854880.2U CN201820854880U CN208267823U CN 208267823 U CN208267823 U CN 208267823U CN 201820854880 U CN201820854880 U CN 201820854880U CN 208267823 U CN208267823 U CN 208267823U
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- valve body
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- float valve
- valve
- inclined hole
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Abstract
The purpose of the utility model is just to provide a kind of twin-core float valve, including valve body and core, valve body is hollow cylinder, upper and lower ends are tack, it is provided in valve body upper periphery and alternate opens parallel twice annular float valve seal groove, seal groove is provided with circular float valve sealing ring, valve body lower end periphery is equipped with cushion rubber bumper, side is provided with inclined hole in the middle part of valve body, intersect connection with valve body centre bore, valve body lower portion is provided with block slot on the outer wall below inclined hole, block slot is provided with block, it is fixed on valve body through bolt, core is housed in the intracorporal inclined hole of valve, core upper end is sphere shape, lower end is hollow cylindrical, core slides in inclined hole, it cannot overturn and keep bulb part upward always, the utility model structure is simple, novel and unique, it is scientific and reasonable, enhance the security capabilities in drilling process, improve the switch efficiency of float valve, it mentions The high service life of float valve, easy to use, effect is good, is the innovation on float valve.
Description
Technical field
The utility model relates to oil drilling float valves, especially can the lower formation drilling well in the open state in going down process
Liquid channel is in normally off in drilling process, can be with the forward flow and stopping of the drilling fluid in drilling well, in opening and closing shape
A kind of twin-core float valve of state.
Background technique
During wellbore construction, bore often and meet high pressure oil air water stratum, for prevent during making a trip formation fluid from
Underground is sprayed by drilling tool channel, and in the case where keeping being full of drilling fluid in drilling rod in guaranteeing normal going down process, drilling well is floating
Valve can close the channel in drilling tool at any time, hurt the generation of the accidents such as drilling tool to avoid emptying in drilling tool causing to damage due to crushing outside drilling tool,
For this purpose, tripping in drilling well float valve, but board-like float valve problem as present on structure at present, service life is shorter, when float valve is turned round
Spring failure, does not work when needing to close, security risk occurs, influence to produce, and therefore, it is imperative to improve and innovate.
Utility model content
For above situation, for the defect for overcoming the prior art, it is floating that the purpose of the utility model is just to provide a kind of twin-core
Valve can effectively solve float valve and close effect, meet live actual demand, improve it using security context and produce asking for work efficiency
Topic.
The technical solution that the utility model solves is a kind of twin-core float valve, including valve body and core, valve body are hollow cylinder
Body, upper and lower ends are tack, be provided in valve body upper periphery it is alternate open parallel twice annular float valve seal groove, seal groove is built-in
There is circular float valve sealing ring, valve body lower end periphery is equipped with cushion rubber bumper, and side is provided with inclined hole in the middle part of valve body, with valve body centre bore phase
Commissure is logical, and valve body lower portion is provided with block slot on the outer wall below inclined hole, and block slot is provided with block, is fixed on valve body through bolt
On, core is housed in the intracorporal inclined hole of valve, core upper end is sphere shape, and lower end is hollow cylindrical, and core slides in inclined hole,
It cannot overturn and keep bulb part upward always, constitute the twin-core structure at valve body center, when not having pressure, core is in gravity
Under the action of, positioned at the lower end of inclined hole, when fluid rises from lower end, fluid is formed centrally in the core rises lifting force (buoyancy),
Core rises, and meets and center seal hole path with centre bore, and when fluid flows under upper phase, fluid pushes downwards core open,
Core simultaneously oliquely downward moves along inclined hole and is stopped at inclined hole lower end, and centre bore forms channel, and drilling fluid is normal through to constitute floating
The opening and closing structure of valve.
The utility model structure is simple, and novel and unique is scientific and reasonable, enhances the security capabilities in drilling process, improves
The switch efficiency of float valve solves the problems, such as execute-in-place difficulty, improves the service life of float valve, reduce drilling well underground work
The generation of journey accident, easy to use, effect is good, is the innovation on float valve.
Detailed description of the invention
Fig. 1 is the utility model section structural front view.
Specific embodiment
It elaborates below in conjunction with attached drawing and particular condition in use to specific embodiment of the present utility model.
As shown in Figure 1, a kind of twin-core float valve of the utility model, including valve body 1 and core 3, valve body 1 are hollow cylinder,
Upper and lower ends are tack, be provided in 1 upper periphery of valve body it is alternate open parallel twice annular float valve seal groove, seal groove is provided with
Circular float valve sealing ring 2,1 lower end peripheral of valve body are equipped with cushion rubber bumper 5, and 1 middle part side of valve body is provided with inclined hole 6, with 1 center of valve body
Hole 1-1 intersection connection, 1 lower part of valve body are provided with block slot on the outer wall below inclined hole 6, and block slot is provided with block 4, through bolt
It is fixed on valve body 1, core 3 is housed in the inclined hole 6 in valve body 1,3 upper end of core is sphere shape, and lower end is hollow cylindrical, core
Body 3 slides in inclined hole 6, cannot overturn and keep bulb part upward always, constitutes the twin-core structure at 1 center of valve body, is not having
When having pressure, under gravity, positioned at the lower end of inclined hole 6, when fluid rises from lower end, fluid is in core 3 for core 3
It is formed centrally and rises lifting force (buoyancy), core 3 rises, and meets and center seal hole path with centre bore 1-1, when fluid is under upper phase
When flowing, fluid pushes downwards core 3 open, and core 3 simultaneously oliquely downward moves along inclined hole 6 and is stopped at 6 lower end of inclined hole, centre bore 1-1 shape
At channel, drilling fluid is normal through to constitute the opening and closing structure of float valve.
In order to guarantee using effect and easy to use,
Groove is provided on the annular float valve seal groove periphery, the float valve sealing ring 2 is to be made of rubber to float with annular
The corresponding annular of valve seal groove, there is uniformly distributed protrusion corresponding with groove in circular periphery, and float valve sealing ring 2 is corresponded to and is closely mounted in
In annular float valve seal groove, sealing structure is constituted.
The block 4 is semicircle, and semicircular straight plane is fitted tightly over the block slot bottom plane on valve body 1
Together, it is provided with the through-hole being connected with straight plane in the cambered surface of block 4, is provided in block slot bottom plane and through-hole phase on block 4
Corresponding screw hole, and through-hole spinning is passed through in screw hole by screw, block 4 and valve body 1 are firmly fixed together.
From the above, it is seen that a kind of diplocardia float valve, including valve body 1, float valve seal 2, core 3, link stopper 4, cushion rubber bumper
5, valve body 1 is hollow cylinder, and upper and lower ends are tack, and installation twice float valve sealing 2 in upper periphery, buffering adhesive is installed in lower end
Pad 5, the 1 middle part side garden Kai Yituo inclined hole 6 of valve body, intersects with 1 centre bore 1-1 of valve body, and outer wall is milled into plane, has in the plane
Two screw holes for fixing match with fixed link stopper 4, and float valve sealing 2 is made of rubber, with the seal groove phase on valve body 1
Sealing function is played in cooperation, and the link stopper 4 at 1 middle part of valve body is semicircle, and semi-circle plane is matched with the plane that valve body 1 mills out, and
It is provided with two screw holes to connect for wearing for bolt, and is bolted on valve body 1, core is housed in 1 garden Nei Tuo inclined hole of valve body
3,3 upper end of core is sphere shape, and lower end is hollow garden column, slides and cannot overturn in oval inclined hole, and keeps knob portion
Point always upwards, sealing structure is formed with valve body 1, under the action of no pressure, core 3 is located at ellipse garden under the action of weight
The lower end of inclined hole, when fluid rises from lower end, fluid can be centrally formed rising lifting force in core 3, and core 3 rises and valve body 1
Centre bore meets and sealed passage, and when liquid flows from the top to the bottom, fluid pushes downwards core 3,3 garden Bing Yantuo inclined hole of core open
It oliquely downward is stopped at ellipse garden inclined hole lower end to movement, centre bore 1-1 forms channel, and drilling fluid is normal through completion float valve work
Process.
The valve body 1 is hollow cylinder, and upper and lower ends are tack, upper middle outer circle installation twice float valve sealing 2, lower end
Cushion rubber bumper 5 is installed, the 1 middle part side garden Kai Yituo inclined hole of valve body intersects with 1 centre bore 1-1 of valve body, and milling is opened at flat in outside
Face, there are two screw holes for fixing in the plane, match with fixed link stopper 4, and float valve sealing 2 is made of rubber in herringbone
Shape is matched with the seal groove on valve body 1, plays sealing function, the link stopper 4 at 1 middle part of valve body be it is semi-circular, another side is plane
The plane milled out with valve body 1 matches, and is provided with two screw holes and connects for wearing for bolt, and be bolted on valve body 1, valve
An entirety is formed equipped with a core 3 in 1 garden Nei Tuo inclined hole of body, the float valve in liquid switch channel is provided.
When the utility model is used, diplocardia float valve is encased in drilling tool, and the G.I.H together with drilling tool, tripping in front center
Body is located at the lower end of ellipse garden inclined hole under the action of weight, and valve body centre bore is opened, and the drilling fluid in well passes through on centre bore
It rises on diplocardia float valve, reaches the fluid pressure balance in drilling tool, avoid occurring dead band in drilling tool causing drilling tool external pressure big
Drilling tool is damaged in the pressure extrusion in drilling tool, bores, creep into, in trip-out process instantly, when there is drilling fluid and returning, that is, reflux
When, heart body is lifted under certain liquid velocity, on hydraulic power to valve body central hole, is formed sealing with centre bore and is completed float valve work
Make process, when turn on pump, drilling fluid can push up go back to the lower end that heart body is located at ellipse garden inclined hole automatically again, which is preferably solved
The problem of cannot closing in the past, the safety of tool is improved, service life is extended, it is float valve that easy to use, effect is good
On innovation, have good social and economic benefit.
Claims (3)
1. a kind of twin-core float valve, including valve body (1) and core (3), it is characterized in that: valve body (1) is hollow cylinder, upper and lower ends
For tack, be provided in valve body (1) upper periphery it is alternate open parallel twice annular float valve seal groove, seal groove is provided with round floating
Valve packing ring (2), valve body (1) lower end peripheral are equipped with cushion rubber bumper (5), and side is provided with inclined hole (6) in the middle part of valve body (1), with valve body
(1) centre bore (1-1) intersection connection, valve body (1) lower part are provided with block slot on the outer wall below inclined hole (6), and block slot is built-in
There are block (4), be fixed on valve body (1) through bolt, core (3) is housed in the inclined hole (6) in valve body (1), core (3) upper end is
Sphere shape, lower end are hollow cylindrical, core (3) sliding in inclined hole (6), cannot overturn and keep bulb part always to
On, the twin-core structure at valve body (1) center is constituted, when not having pressure, core (3) under gravity, is located at inclined hole (6)
Lower end, when fluid rises from lower end, fluid is centrally formed rising lifting force in core (3), and core (3) rises, with centre bore (1-
1) it meets and center seal hole path, when fluid flows under upper phase, fluid is pushed open downwards core (3), core (3) and along oblique
Hole (6), which oliquely downward moves, is stopped at inclined hole (6) lower end, and centre bore (1-1) forms channel, and drilling fluid is normal through to constitute
The opening and closing structure of float valve.
2. twin-core float valve according to claim 1, it is characterized in that: it is provided with groove on the annular float valve seal groove periphery,
The float valve sealing ring (2) is to be made of rubber annular corresponding with annular float valve seal groove, have in circular periphery it is uniformly distributed with
The corresponding protrusion of groove, float valve sealing ring (2) is corresponding to be closely mounted in annular float valve seal groove, constitutes sealing structure.
3. twin-core float valve according to claim 1, it is characterized in that: the block (4) is semicircle, it is semicircular straight flat
Block slot bottom plane on face and valve body (1) fits closely together, is provided in the cambered surface of block (4) and is connected with straight plane
Through-hole, screw hole corresponding with through-hole on block (4) is provided in block slot bottom plane, and through-hole spinning is passed through by screw and is existed
In screw hole, block (4) and valve body (1) are firmly fixed together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854880.2U CN208267823U (en) | 2018-06-04 | 2018-06-04 | A kind of twin-core float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820854880.2U CN208267823U (en) | 2018-06-04 | 2018-06-04 | A kind of twin-core float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267823U true CN208267823U (en) | 2018-12-21 |
Family
ID=64688114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820854880.2U Active CN208267823U (en) | 2018-06-04 | 2018-06-04 | A kind of twin-core float valve |
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| Country | Link |
|---|---|
| CN (1) | CN208267823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468530A (en) * | 2018-06-04 | 2018-08-31 | 济源微浪石油设备有限公司 | A kind of twin-core float valve |
-
2018
- 2018-06-04 CN CN201820854880.2U patent/CN208267823U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468530A (en) * | 2018-06-04 | 2018-08-31 | 济源微浪石油设备有限公司 | A kind of twin-core float valve |
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